package com.example.dao;

import com.example.pojo.Department;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

//部门dao
@Repository
public class DepartmentDao {

    //模拟数据

    private static Map<Integer, Department> departments = null;

    static {
        departments = new HashMap<Integer, Department>();  //创建一个部门表

        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"体育部"));
        departments.put(103,new Department(103,"理学部"));
        departments.put(104,new Department(104,"工程部"));
        departments.put(105,new Department(105,"人事部"));
    }

    //获得所有部门信息
    public Collection<Department> getDepartments(){
        return departments.values();
    }

    //通过id部门
    public Department getDepartmentById(Integer id){
        return departments.get(id);
    }


}
